Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California


Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 9:13:49 AM (PDT) on Tuesday, August 5, 2025.
The magnitude 1.7 event occurred 5 km (3 miles) W of Redwood Valley, CA.
The hypocentral depth is 4 km ( 2 miles).


Magnitude 1.7 - duration magnitude (Md)
Time Tuesday, August 5, 2025 at 9:13:49 AM (PDT)
Tuesday, August 5, 2025 at 16:13:49 (UTC)
Distance from Redwood Valley, CA - 5 km (3 miles) W (265 degrees)
Ukiah, CA - 13 km (8 miles) NNW (339 degrees)
Talmage, CA - 17 km (10 miles) NNW (330 degrees)
Willits, CA - 18 km (11 miles) SSE (155 degrees)
Brooktrails, CA - 23 km (14 miles) SSE (153 degrees)
Coordinates 39 deg. 15.7 min. N (39.261N), 123 deg. 15.9 min. W (123.264W)
Depth 3.84 km (2.40 miles)
Quality Good
Location Quality Parameters Nst=27, Nph=29, Dmin=6.9 km, Rmss=0.09 sec, Erho=0.21 km, Erzz=0.97 km, Gp=50 degrees
Event ID# nc75219582
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For more information, see https://earthquake.usgs.gov

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